Structure 52420299 · Pennington County, SD

Maple Avenue over Rapid Ck

Carries Maple Avenue over Rapid Ck, 0.1n Maple &omaha ST - Rc.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT164 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

164 ft end to end, longest span 45 ft: about 2 semi-trucks nose to tail. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a slab bridge.

Built199234 years old
Length164.0 ft50 m
Daily traffic400counted 2022
Last inspectedApril 2024every 24 months

Location

StateSouth Dakota
CountyPennington
Location0.1n Maple &omaha ST - Rc
CarriesMaple Avenue
CrossesRapid Ck
Coordinates44.08228, -103.21173

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length164.0 ft (50 m)
Max Span44.9 ft (13.7 m)
Deck Width38.7 ft (11.8 m)
Deck Area590 sq m
Main Spans4
Year Built1992

Traffic

Avg Daily Traffic400 (2022)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000052420299

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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